./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9918b49e0d76e4ce36b6a6760021b33460a8ae9b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:17:08,429 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:17:08,430 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:17:08,439 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:17:08,439 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:17:08,440 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:17:08,441 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:17:08,443 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:17:08,444 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:17:08,444 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:17:08,445 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:17:08,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:17:08,446 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:17:08,447 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:17:08,448 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:17:08,448 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:17:08,449 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:17:08,451 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:17:08,452 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:17:08,454 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:17:08,454 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:17:08,455 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:17:08,457 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:17:08,457 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:17:08,457 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:17:08,458 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:17:08,459 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:17:08,460 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:17:08,460 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:17:08,461 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:17:08,462 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:17:08,462 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:17:08,462 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:17:08,463 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:17:08,463 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:17:08,464 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:17:08,464 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-10-27 05:17:08,475 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:17:08,475 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:17:08,476 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:17:08,476 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:17:08,477 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:17:08,477 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:17:08,477 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:17:08,477 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 05:17:08,477 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:17:08,477 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:17:08,478 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 05:17:08,478 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:17:08,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:17:08,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:17:08,479 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:17:08,479 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:17:08,479 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 05:17:08,479 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:17:08,479 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:17:08,480 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 05:17:08,480 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 05:17:08,480 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:17:08,480 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:17:08,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 05:17:08,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:17:08,480 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:17:08,481 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:17:08,481 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 05:17:08,481 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:17:08,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:17:08,481 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9918b49e0d76e4ce36b6a6760021b33460a8ae9b [2018-10-27 05:17:08,513 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:17:08,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:17:08,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:17:08,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:17:08,525 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:17:08,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-10-27 05:17:08,570 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/data/785a4075c/4347f48b39004b14a1eb631a68c39ede/FLAG17685a347 [2018-10-27 05:17:08,937 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:17:08,938 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-10-27 05:17:08,942 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/data/785a4075c/4347f48b39004b14a1eb631a68c39ede/FLAG17685a347 [2018-10-27 05:17:08,952 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/data/785a4075c/4347f48b39004b14a1eb631a68c39ede [2018-10-27 05:17:08,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:17:08,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:17:08,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:17:08,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:17:08,960 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:17:08,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:17:08" (1/1) ... [2018-10-27 05:17:08,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfe220a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:08, skipping insertion in model container [2018-10-27 05:17:08,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:17:08" (1/1) ... [2018-10-27 05:17:08,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:17:08,988 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:17:09,100 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:17:09,103 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:17:09,116 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:17:09,128 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:17:09,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09 WrapperNode [2018-10-27 05:17:09,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:17:09,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:17:09,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:17:09,129 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:17:09,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:17:09,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:17:09,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:17:09,159 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:17:09,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:17:09,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:17:09,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:17:09,177 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:17:09,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 05:17:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:17:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:17:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 05:17:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 05:17:09,661 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:17:09,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:17:09 BoogieIcfgContainer [2018-10-27 05:17:09,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:17:09,662 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 05:17:09,662 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 05:17:09,671 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 05:17:09,671 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:17:09" (1/1) ... [2018-10-27 05:17:09,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:17:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 39 transitions. [2018-10-27 05:17:09,719 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2018-10-27 05:17:09,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-27 05:17:09,721 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:09,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2018-10-27 05:17:09,974 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2018-10-27 05:17:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-27 05:17:09,974 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:10,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:10,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2018-10-27 05:17:10,210 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2018-10-27 05:17:10,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-27 05:17:10,213 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:10,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2018-10-27 05:17:10,676 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2018-10-27 05:17:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-27 05:17:10,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:10,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 41 transitions. [2018-10-27 05:17:11,150 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2018-10-27 05:17:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:17:11,151 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:11,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:11,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:11,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2018-10-27 05:17:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2018-10-27 05:17:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:17:11,209 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2018-10-27 05:17:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2018-10-27 05:17:11,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:17:11,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:11,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:11,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 35 states and 47 transitions. [2018-10-27 05:17:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2018-10-27 05:17:11,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:17:11,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 40 states and 53 transitions. [2018-10-27 05:17:11,753 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2018-10-27 05:17:11,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 05:17:11,753 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:17:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 40 states and 52 transitions. [2018-10-27 05:17:11,905 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2018-10-27 05:17:11,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 05:17:11,905 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:17:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:12,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 45 states and 63 transitions. [2018-10-27 05:17:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2018-10-27 05:17:12,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 05:17:12,136 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-27 05:17:12,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:12,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 48 states and 67 transitions. [2018-10-27 05:17:12,374 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2018-10-27 05:17:12,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-27 05:17:12,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:17:12,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:12,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 57 states and 80 transitions. [2018-10-27 05:17:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2018-10-27 05:17:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-27 05:17:12,902 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:12,930 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-10-27 05:17:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 56 states and 78 transitions. [2018-10-27 05:17:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2018-10-27 05:17:13,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-27 05:17:13,029 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-10-27 05:17:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 54 states and 73 transitions. [2018-10-27 05:17:13,148 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2018-10-27 05:17:13,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-27 05:17:13,148 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 05:17:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 59 states and 79 transitions. [2018-10-27 05:17:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions. [2018-10-27 05:17:13,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 05:17:13,631 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:13,933 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-27 05:17:14,571 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 05:17:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 64 states and 90 transitions. [2018-10-27 05:17:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2018-10-27 05:17:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 05:17:14,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-27 05:17:15,074 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-27 05:17:15,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:15,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 82 states and 113 transitions. [2018-10-27 05:17:15,884 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 113 transitions. [2018-10-27 05:17:15,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 05:17:15,886 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-10-27 05:17:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 88 states and 123 transitions. [2018-10-27 05:17:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2018-10-27 05:17:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 05:17:16,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-27 05:17:17,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:17,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 97 states and 143 transitions. [2018-10-27 05:17:17,134 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 143 transitions. [2018-10-27 05:17:17,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 05:17:17,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-27 05:17:17,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:17,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 100 states and 145 transitions. [2018-10-27 05:17:17,355 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 145 transitions. [2018-10-27 05:17:17,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 05:17:17,356 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 40 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-27 05:17:17,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:17,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 101 states and 147 transitions. [2018-10-27 05:17:17,643 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2018-10-27 05:17:17,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 05:17:17,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 24 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:19,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:19,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 108 states and 165 transitions. [2018-10-27 05:17:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 165 transitions. [2018-10-27 05:17:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 05:17:19,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 24 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:19,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:19,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 112 states and 169 transitions. [2018-10-27 05:17:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2018-10-27 05:17:19,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 05:17:19,368 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 43 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-27 05:17:20,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 118 states and 182 transitions. [2018-10-27 05:17:20,209 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 182 transitions. [2018-10-27 05:17:20,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 05:17:20,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 40 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-27 05:17:20,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:20,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 122 states and 185 transitions. [2018-10-27 05:17:20,500 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 185 transitions. [2018-10-27 05:17:20,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 05:17:20,501 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 43 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-27 05:17:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 126 states and 193 transitions. [2018-10-27 05:17:20,950 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 193 transitions. [2018-10-27 05:17:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 05:17:20,951 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 24 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:17:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:21,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 129 states and 196 transitions. [2018-10-27 05:17:21,250 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 196 transitions. [2018-10-27 05:17:21,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 05:17:21,251 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 41 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-27 05:17:21,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 133 states and 202 transitions. [2018-10-27 05:17:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 202 transitions. [2018-10-27 05:17:21,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-27 05:17:21,662 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 24 proven. 81 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:17:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 138 states and 213 transitions. [2018-10-27 05:17:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 213 transitions. [2018-10-27 05:17:22,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-27 05:17:22,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-27 05:17:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 139 states and 214 transitions. [2018-10-27 05:17:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 214 transitions. [2018-10-27 05:17:22,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-27 05:17:22,818 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 24 proven. 81 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:17:23,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:23,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 144 states and 224 transitions. [2018-10-27 05:17:23,583 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 224 transitions. [2018-10-27 05:17:23,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-27 05:17:23,584 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:17:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 54 proven. 48 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-27 05:17:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:25,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 40 states and 41 transitions. [2018-10-27 05:17:25,198 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-10-27 05:17:25,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:17:25,199 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 33 iterations. [2018-10-27 05:17:25,208 INFO L778 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2018-10-27 05:17:25,356 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 05:17:25,358 INFO L582 CodeCheckObserver]: Invariant with dag size 39 [2018-10-27 05:17:25,366 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 05:17:25,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 05:17:25 ImpRootNode [2018-10-27 05:17:25,367 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 05:17:25,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:17:25,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:17:25,367 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:17:25,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:17:09" (3/4) ... [2018-10-27 05:17:25,370 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:17:25,375 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-27 05:17:25,377 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-10-27 05:17:25,377 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-27 05:17:25,377 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 05:17:25,420 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8b0caa09-38d0-404f-87ab-f546eb2af75f/bin-2019/ukojak/witness.graphml [2018-10-27 05:17:25,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:17:25,421 INFO L168 Benchmark]: Toolchain (without parser) took 16465.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 266.3 MB). Free memory was 962.4 MB in the beginning and 1.2 GB in the end (delta: -258.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:25,422 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:25,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.79 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:25,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.26 ms. Allocated memory is still 1.0 GB. Free memory is still 951.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:25,422 INFO L168 Benchmark]: Boogie Preprocessor took 18.04 ms. Allocated memory is still 1.0 GB. Free memory was 951.6 MB in the beginning and 946.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:25,423 INFO L168 Benchmark]: RCFGBuilder took 484.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:25,423 INFO L168 Benchmark]: CodeCheck took 15704.89 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 111.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -85.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:25,423 INFO L168 Benchmark]: Witness Printer took 53.43 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:25,425 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 38 locations, 8 error locations. SAFE Result, 15.5s OverallTime, 33 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -2147483648 SDtfs, 1347133978 SDslu, 204259304 SDs, 0 SdLazy, 1967261146 SolverSat, -1243276112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7381 GetRequests, 6658 SyntacticMatches, 419 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53398 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 829 ConstructedInterpolants, 0 QuantifiedInterpolants, 131713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 10 PerfectInterpolantSequences, 928/1496 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((((a <= b && b + a <= 18) && b <= a) && 1 <= a) || ((63 <= b + a && b == 18) && b + a <= 63)) || ((b == 18 && 63 <= 3 * b + a) && 3 * b + a <= 63)) || ((63 <= a && b == 18) && a <= 63)) || ((2 * b + a <= 63 && 63 <= 2 * b + a) && b == 18)) || (((b <= 0 && a <= 9) && b < a) && 0 < b + 1) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.79 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.26 ms. Allocated memory is still 1.0 GB. Free memory is still 951.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.04 ms. Allocated memory is still 1.0 GB. Free memory was 951.6 MB in the beginning and 946.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 484.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * CodeCheck took 15704.89 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 111.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -85.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Witness Printer took 53.43 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...